Biology Middle School

According to the cell theory, which describes cells?
All organisms are composed of multiple cells.
All cells have the same structure and function.
Cells are found in everything on Earth.
All living cells come from other living cells.

Answers

Answer 1

Answer:

3. All living cells come from other living cells

Answer 2
Last statement is correct

Related Questions

What tissues do human cold viruses infect?

Answers

Answer/Explanation:

Colds are minor infections of the nose and throat caused by more than 200 diseases.  (I will edit my answers once i find the correct answer sorry)

cold viruses infect the nose and throat

As elevation _________, the average​ annual temperature __________.​

A - increases, decreases

B - decreases, decreases

C -increases, increases

Answers

Explanation:

option A, i really dont have an explanation for that

increases, decreases, whoop whoop

What is poison?
pls help

Answers

Answer:

Explanation:

In biology, poisons are substances that can cause death, injury or harm to organs, tissues, cells, and DNA usually by chemical reactions or other activity on the molecular scales, when an organism is exposed to a sufficient quantity.

Poison is anything that is disturbing any organisms natural order. I hope this helped

SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO COMPLETE THIS! NO LINKS OR YOU WILL BE REPORTED, I WILL GIVE BRAINLIEST!!!!!

Answers

Answer:

Dire wolves- these wolves had long ulna and radius bones to support the wolve's need to run for extended periods of time to hunt animals. The distal bones allowed the wolves to keep the wolf balanced and helped ensure the body could handle running on land

the fruit bat- the small yet long and thin ulna, radius, and distal bones of the fruit bat ensure the bat is light enough to fly quickly and avoid weighing down the bats wings. the light bones allow the bat to fly quickly as the bats do not require strong bones to run like the dire wolf

Komodo dragons (a lizard species) and red-tailed boas (a snake species) are both reptiles. They share a common ancestor population that lived about 250 million years ago, but they have been separated in different environments, with different food sources, for millions of years. Komodo dragons and red-tailed boas have some shared structures. They also have some differences in their structures.



1.Why do Komodo dragons and red-tailed boas have some shared structures and some different structures?

Answers

They have similar characteristics and structures because they are both reptiles and came from a common ancestor. That meant that, going back in time, both of these creatures were once one common, ancestral animal. Once the animals were put into different environments, they changed and evolved overtime in order to adapt to the challenges in the habitat specific to them. But, because they come from a common ancestor, they started from the same ‘base’, and will still share similarities today.

Komodo dragons and red-tailed boas have some shared structures because they both evolved from a common ancestor population that lived about 250 million years ago.

What is the difference has come over the time in these species?

Over time, as these two species separated into different environments with different food sources, they underwent separate evolutionary trajectories that led to differences in their structures. However, many of the underlying genetic and developmental mechanisms that produced their ancestral structures are still present in both species.

For example, both Komodo dragons and red-tailed boas have scales, which are a common feature of reptiles. Scales serve to protect the skin from abrasion and injury, as well as to reduce water loss. They also both have a vertebral column, which provides support for the body and protects the spinal cord.

At the same time, Komodo dragons and red-tailed boas have differences in their structures because they evolved in different environments and have different feeding strategies. Komodo dragons are large, carnivorous lizards that use their sharp teeth and powerful jaws to hunt and kill prey, while red-tailed boas are constrictor snakes that use their muscular bodies to suffocate and swallow their prey whole.

As a result, the structures of their jaws, teeth, and digestive systems are adapted to their respective diets and hunting strategies, and differ in significant ways.

Overall, the shared and different structures between Komodo dragons and red-tailed boas reflect both their common evolutionary heritage and their divergent evolutionary trajectories.

Learn more about lizards at:

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Whether you think it is a good solution or not? Explain why
​

Answers

Answer:

yes I think it is a good solution because

Explanation:

climate change can fossil fuels in the ground ,

Invest in renewable energy , Switch to sustainable transport , Help us keep our homes cosy ,

Improve farming and encourage vegan diets ,

Restore nature to absorb more carbon ,

Protect forests like the Amazon , and also

Protect the oceans.

let me know if this helped

Answer:

I think it's a good solution.

Explanation:

Since the 2 main causes for climate change are burning fuel and methane released by animals it would be logical to cut down on them and use more nature friendly options.

i need helps with this assignment im trying to get caught up because its been a weird school year

Answers

PLEASE MARK ME AS THE BRAINLIEST and good luck on catching up <3

for the first pic, fungi: helps the environment by eating harmful bacteria. They are very important because they decompose wood and other materials that will then lead and go to the atmosphere.

Snail: snails are very important for the food chain because they eat rotting vegetation and fungi. Other animals count on snails so when they perish they can get all the nutrients from them

earthworm: earthworms are very important because they help the soil out .They make tunnels that lead water and air to roots.

Pill bug: They are decomposes which eat decaying plants.

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URGENT
Hypothesis: If I project light rays through water then they will refract, or bend, the most.

Procedure: Test variable (independent variable):
The outcome variable (dependent variable):​

Answers

Answer:

The independent variable is the projection of yhe light rays, and the dependent variable is the refraction and bending

The independent variable is you
Projecting the light rays, and the dependent variable is reaction and bending of the rays.

Hope this helped mark me the brainiest!!

Pleaseee pleasee help :)

Answers

Answer: first one is a second d

Explanation:

the first one is D the second one is C :)

HELP PLEASE READ THE ANSWER FROM NUMBER 1 AND MAKE IT AS A SENTENCE​

Answers

Answer:

The solution is gonna work by carbon dioxide being removed from atmosphere by this solution.

Explanation:

Hope it helps you:)

The solutions works by extracting the carbon dioxide molecules from the atmosphere

True/False: Animal viruses can only infect animal cells.

Answers

Answer: Hi there I think I have the answer to your problem let me help You!!!

Explanation:

False because it can not only infect just animale cells but can affect humans if spreded and can be spreded to fly's. Then the flys spread it to other animals.

Have a nice day! don't forget the rate and give branlist!

The answer is
False
Bye

How can the amount of energy absorbed by Earth's surface change?​

Answers

The earth-atmosphere energy balance is the balance between incoming energy from the Sun and outgoing energy from the Earth. Energy released from the Sun is emitted as shortwave light and ultraviolet energy. When it reaches the Earth, some is reflected back to space by clouds, some is absorbed by the atmosphere, and some is absorbed at the Earth's surface.
I don’t know I’m sorry

please help
- no links or scams *

Answers

Dna can help find different diseases
dna shows how you’ll look

Please help me with this!

Answers

Answer:

Homzygous

Explanation:

the answer is b hope this helped

1. During photosynthesis, plants use energy from sunlight to make food out of
carbon dioxide and water. Plants respond to environmental stimuli such as
light, gravity, and changing seasons. Circle the right word
A. Photosynthesis takes place in chloroplasts/ mitochondria, which contain
chlorophyll.
B. Photosynthesis / cellular respiration releases the energy stored in food and
produces carbon dioxide and water.
C. Growth, wilting, and dormancy are examples of plant responses / stimuli.
Plants complete their life cycles by alternating between sporophytes and
gametophytes.
D. Flowering plants produce seeds / spores and fruit following fertilization.
E. Some plants use plantlets, tubers, or runners to reproduce sexually/ asexually

Answers

B. Photosynthesis/Cellular respiration releases energy stored in food and produces carbon dioxide and water
B. Photosynthesis / Cellular Respiration.

Explanation:
Photosynthesis goes hand-in-hand with cellular respiration.

Which of the following provides the best example of the parts of a system working together to achieve a specific function?

A. Red blood cells are capable of transporting oxygen because of their chemical composition.
B. Glands in the mouth, the stomach, the pancreas, and the small intestine all secrete chemicals that break down nutrients.
C. Specialized cells in a plant's leaf open and close in response to changing conditions

Answers

Answer:

B

Explanation:

The separate glands are helping to break down nutrients

I believe that it’s B

hi this is for ss plz help me

Answers

The intersection of those coordinates end up in northern canada
Canada, just look up to find the north on that map, and left for the west, matching both lines the exact point is Canada

whether you think it is a good solution or not? Explain why​

Answers

Answer:

So it's easy to think that this section, on defining and analyzing the problem, ... Then, we'll talk about whether or not you really want to solve the problem, or whether ... But this is the legwork, the foundation on which you'll lay effective solutions.

Explanation:

Yes. It’s a good solution because it puts them in the atmosphere

What could you make or do to make sure your bean plants stay upright and don’t fall down?

Answers

Answer:

I got this off of g o o g l e

Explanation:

I put pairs of small fence posts (one on each side) down the row. I then tied twine to the fence post and ran it on either side of the plants. This keeps them from falling over to the side. If you plant thick enough they won't fall to the front or back.

Seedlings fail to emerge. Several possible causes: (1) Beans are a warm weather crop and seed may rot in soil less than 50° to 60° F. Delay planting until the soil has warmed; (2) Soil is heavy or crusted; seedlings may not be able to push through. Add aged compost to the planting bed; cover seed with light compost mulch; (3) Seed was sown too deep or not deep enough. Beans planted in spring 2 inches deep or more may rot and fail to germinate. Beans planted at the end of spring or in summer may dry out and die if sown less than 1 inch deep. Plant beans about 1 inch deep in early spring; 2 inches deep later in the season

QUESTION AND DIAGRAM IN THE PICTURE
CORRECT ANSWE GETS BRAINLIEST
REPORTING ANY LINKS

Answers

Answer:

Estrogen and Progestrone harmone help in the thickening of the inner wall of the uterus i.e. endometrium layer,for the reception of fertilized eggs and their development.

Progestrone prepares the uterus for a fertilizef egg to implant.

The uterus lining sheds if no fertilization occured because the sperm passes through the uterus so.the lining of the uterus again starts to break down and shed ,and new mestural period begins

Explanation:

Hope this helps u!!


Estrogen :thickens the endometrium,inhibits the action of FSH & LH
Progesterone :thickens the endometrium ,inhibits the action of LSH&LH in the luteal phase and stimulated LH secretion in follicular phase

Uterus lining (endometrium ) thickens during the proliferative phase of the cycle due to progesterone,if there’s no pregnancy the level of progesterone and estrogen decreases (due to breakdown of corpus luteum ) hence resulting into degeneration of the endometrium (Ischemic phase )

how many parts to a virus?
1
2
3
4

Answers

Answer:

2

Explanation:

The most simple viruses have only two parts: 1) a genome (DNA or RNA) that is a blueprint with instructions for making more viruses and 2) a capsid protein shell that protects the genome.

2 is the answer I think

Can someone please help me answer these questions? i'll give the brainlest.

Answers

Something that excites you could be the movement of technology and society. Innovation is changing things such as crops to be more convenient. So, now we get more out of it.

list two background experiences/training opportunities that would be influential to a city planner​

Answers

Answer:

business and pharmacist

Explanation:

those are everyday thing your around

buisness and retail

What is the result of cell reproduction?

Answers

Answer:

answer should be A, hope this helps!

I think it's A^^^^^******

Where are fats, carbohydrates, and proteins broken down into particles small enough to be absorbed into the body?
Hint: These enzyme-rich juices break the fat molecules down into fatty acids
and glycerol for easier absorption into the body.
The enzymes also carry out the final deconstruction
of proteins into amino acids
and carbohydrates into glucose.
This happens in the small intestine's lower regions,
the jejunum and ileum,
which are coated in millions of tiny projections called villi.

Options:in the stomach
in the illium
in the duodenum
in the jejunum

Answers

Answer:

Duodenum (option 3)

Explanation:

Digestion of carbohydrates, proteins, and fats continues in the small intestine. Starch and glycogen are broken down into maltose by small intestine enzymes. Proteases are enzymes secreted by the pancreas that continue the breakdown of protein into small peptide fragments and amino acids.

The duodenum is the first section of the small intestine and is the shortest part of the small intestine. It is where most chemical digestion using enzymes takes place

This happens in the pancreas

name the two kinds of particles that make up a water particle

Answers

Oxygen and hydrogen make up water

Answer:

Explanation:

2 atoms of hydrogen and 1 atom of oxygen. or H20

Which level of organization encompasses the others?

A.
Cells

B.
Tissues

C.
Organs

D.
Organ Systems

Answers

Answer:d

Explanation: because it encompasses all other levels if you see

the answer is D. organ system

katelyn is working on a project about classifying cells as either prokaryotic or eukaryotic. she is observing a cell under an electron microscope that does not have a cell wall but does have a nucleus. how should katelyn classify this cell? A. as a prokaryotic cell B. as a eukaryotic cell C. there is not enough info to classify this cell D. the cell had components of both types

Answers

I would say B. an eukaryotic cell!

A eukaryote can be a plant or animal cell. They have a nucleus and animal cells do not have a cell wall. So specifically probably an animal cell but for this question an eukaryotic cell is the answer!

A prokaryotic cell lacks a nucleus but do have a cell wall but this can’t be the answer because of the lack of a nucleus.

So B! Eukaryotic cell! Hope this helped!

Katelyn should classify this cell as a eukaryotic cell. The presence of a nucleus is a defining characteristic of eukaryotic cells, while prokaryotic cells do not have a nucleus. The absence of a cell wall is not enough to classify a cell as prokaryotic, as some eukaryotic cells also lack cell walls.

What are eukaryotic cells?

Eukaryotic cells are cells that have a distinct membrane-bound nucleus and other membrane-bound organelles that carry out specific functions. These cells are typically larger and more complex than prokaryotic cells, which lack a nucleus and organelles.

Eukaryotic cells are found in plants, animals, fungi, and protists. They are characterized by their compartmentalization, meaning that various parts of the cell are separated by membranes, allowing for specialized functions to be carried out within specific areas of the cell.

Examples of eukaryotic organelles include the mitochondria, endoplasmic reticulum, Golgi apparatus, and lysosomes.

To know more about eukaryotic cells:

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Which of these is NOT true about natural selection? A. Natural selection only applies to heritable traits. B. Natural selection usually occurs over a short period of time. C. Natural selection occurs to populations not individuals.

Answers

Answer:

I'm pretty sure it's B

Explanation:

I'm sorry if it's not but I'm almost positive.

The answer is b. Natural selection usually occurs over a short period of time

Can someone please help me asap

Answers

It’s a answer that you need to find out ok ok thanks bye hope this helps !!
convergent, where plates move into one another, divergent where plates move apart; and transform, where plates move sideways in relation to each other. At a Convergent boundary continental crust is created and oceanic crust is destroyed and it’s a slow process. At a divergent boundary new crust is generated as the plates pull away from each other and it’s a slow process. At a transform boundary crust is neither produced nor destroyed as the plates slide horizontally past each other and i believe it’s fast.
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