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Dafna11 [192]
3 years ago
13

ASAP PLZ In three to five sentences, explain why animal cells do not require a cell wall or a central vacuole for their function

s.
Biology
1 answer:
Anuta_ua [19.1K]3 years ago
7 0

Answer:

Plants and animals cells share many different characteristic, but they also have unique differences. Plants cells are large and rectangular, while animals cells are smaller and round.Unlike plants cells, animal’s cells have centrioles,lysosomes, and cholesterol in their plasma membranes

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How do the temperaments of cows and bulls compare?
alexdok [17]
The Answer Is D: Bulls Are More Sensitive To Noise And Color, While Cows Are Less Sensitive. In A Rodeo, The Bull Riders Make Noises And Fling Around Red Capes, Making The Bull Angry. The Ironic Thing Is, Bulls Are Colorblind, So The Cape Gets Them Mad Because of The Movement. With Cows, They Don't Really Care About Noise. If You Were To Drive A Really Noise Tractor Around In The Pasture With Them, Which Farmers Do, They Don't Tend To Care.
     ~Spades15~
3 0
3 years ago
Chapter 1: Introduction: Evolution and the Foundations of Biology 1. _______ DNA is composed of building blocks called _____. a.
irina [24]

Answer:

C. Nucleotides

Explanation:

Nucleic acids are macromolecules which are polymers of nucleotides. There are two types of nucleic acids namely: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleotides are the building blocks of nucleic acids.

A nucleotide is made up of three components:

- A phosphate group

- A five carbon sugar called pentose sugar. In RNA the sugar is ribose sugar and in DNA the sugar is deoxyribose sugar.

- Nitrogenous bases: There are four different types of bases in DNA: adenine, guanine, cytosine and thymine. In RNA thymine is replaced by uracil. Adenine and guanine are purines whereas cytosine, thymine and uracil are pyrimidines.

Nitrogenous base and sugar together are called nucleoside and when phosphate is also attached then it is called nucleotide.

6 0
2 years ago
PLS HELP!
lilavasa [31]

Answer:

evolution of life on Earth

Explanation:

Life began on Earth at least 3.5 to 4 billion years ago, and it has been evolving ever since. At first, all living things on Earth were simple, single-celled organisms. Much later, the first multicellular organisms evolved, and after that, Earth's biodiversity greatly increased.

7 0
2 years ago
Hormones play an important role in regulating blood glucose levels. what is an example of this?
Ber [7]
The human body wants blood glucose (blood sugar) maintained in a very narrow range. Insulin and glucagon are the hormones which make this happen. Both insulin and glucagon are secreted from the pancreas, and thus are referred to as pancreatic endocrine hormones. The picture on the left shows the intimate relationship both insulin and glucagon have to each other. Note that the pancreas serves as the central player in this scheme.  It is the production of insulin and glucagon by the pancreas which ultimately determines if a patient has diabetes, hypoglycemia, or some other sugar problem.(i hope this can help you) :)
3 0
3 years ago
Describe the structure of bird eggs and explain what usually happens to the eggs after they are laid
Vladimir79 [104]

Answer

They have polygenic inheritance and are also affected by the environment factor.

Explanation

The trait of height and skin tone are controlled by different genes and are also affected by environmental factors. The skin tone and height within the population is not specific, both have wide ranges varies from high expression of the gene to less or even no expression of the gene. Mostly these factors are mostly affected by inheritance and less by environmental factors.

3 0
2 years ago
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