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mr Goodwill [35]
3 years ago
8

Bipedalism has traditionally been viewed as an adaptation to open grassland or savanna country, although Ardipithecus lived in a

humid woodland habitat. Perhaps bipedalism developed in the woodlands but became even more adaptive in a savanna habitat.
O True
O False
Biology
1 answer:
olasank [31]3 years ago
7 0

Answer:True

Explanation:

Bipedalism is walking on two legs its is common to human and apes such as gorilla. it differentiate the early hominis that uses primitive with bipedal and recent(humans and some apes) that uses legs.

Bipedalism allows the hominis who lives in the forest adapt to the savannah habitat where walking with two legs is possible and the use of hands for hunting of food. Although the early hominis lived in the forest for years they are able to adapt and thrive well in the savannah when they found themselves there.

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Somalia is located on the coast of Africa, east of Ethiopia.<br><br> True<br> False
USPshnik [31]
Yes, It's true Somalia is at the very east of Athupia
7 0
3 years ago
The widows peak that is seen in some people is an example of what type of trait?
Ksju [112]

Answer:

A. single-gene

Explanation:

It is controlled by a single gene that has two alleles. The allele for a widow's peak is dominant over the allele for a hairline with no peak.

5 0
3 years ago
How specifies that are separated for a river, rocks, mountains, forest ; can at some point not being able to interbreed anymore
Allushta [10]

Answer:

Species separated by a physical barrier for a long time, suffer allopatric speciation, so they can not interbreed anymore.

Explanation:

Allopatric speciation consists of the geographic separation of a continuous genetic background giving place to two or more new geographically isolated populations. These separations might be due to migration, extinction of geographically intermediate populations, or geological events. In this speciation, some barriers impede genetic interchange, or genetic flow, as the two new populations that are separated can not get together and mate anymore. These barriers might be geographical or ecological.

Vicariance is the geographical separation of an original population into two or more new groups. Discontinuities in the physical environment like rivers, mountains, water, etc., are physical barriers that impede genetic flow between the separated groups.

The process of allopatric speciation involves different steps:  

  1. The emergence of the barrier.  
  2. Interruption in the genetic interchange
  3. The occurrence of new mutations and their accumulation in time in each population. Slow and gradual differentiation.
  4. Genetic divergence by natural selection and reproductive isolation makes it impossible for the two groups to mate even if the barrier disappears.  
  5. Prezigotic isolation mechanisms favored by selection once occurs a secondary contact between the new species in formation.

8 0
3 years ago
1)
DanielleElmas [232]
Cellulose is another long polymer of glucose. Plant cells make their cell walls out of cellulose. In fact, 100 billion tons of cellulose is made every year on earth. Cellulose is indigestible in most animals, including us. Ever eat a cardboard box? You get the picture. We simply lack cellulase, the enzyme that can break it down. Some bacteria, some single-celled protists, and fungi have the enzyme. Animals that feed on cellulose harbor these microbes that help them digest it. Even though, we cannot break down this molecule, we do need cellulose in our diet. We call it “fiber”. Cellulose stimulates the colon to produce regular bowel movements and helps make the stools large and soft. A diet rich in fiber can prevent a painful intestinal disorder called diverticulosis. Hard impacted stools can sometimes cause the walls of the colon to form blind outpockets called diverticula which can periodically inflame. So what makes cellulose different from starch? Isn’t it made of glucose? Well it is but the glucose monomers are organized in an interesting fashion. The orientation of the glucose molecules alternates. So if the first one is right side up, the next one is upside down and then the next is right side up and the next one is upside down. Apparently this is a tricky arrangement for an enzyme to break.
7 0
3 years ago
One of the reasons you might struggle to lift a heavy object with your arm fully extended is because:_______.
klasskru [66]

Answer:

the overlapping decreases between the thin and thick filaments.

Explanation:

When w extend our hand or arm to the full and try to lift any heavy object, we are unable to lift the object inspite of applying all our force. We struggle hard to lift the object with our fully extended arm because when we extend our arm fully it decreases the overlapping of our thin and the thick filaments of our muscles which makes it difficult to lift. In other words, the resting length of our arm is the optimal length to generate force.

4 0
3 years ago
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