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AlladinOne [14]
3 years ago
7

The earliest hominid fossil, “Lucy,” is estimated to be 3.2 million years old. This early human-like species shares an important

characteristic with modern humans: bipedalism. Which of the following would favor the selection of bipedal posture over walking on all fours?
Bipedal posture allowed for greater mobility in the tree canopy.


Bipedal posture allowed arms to be free to develop and use tools.


Bipedal posture allowed for an increase in hominid brain and jaw size.


Bipedal posture allowed a greater number of offspring to be produced in hominids.
Biology
2 answers:
valina [46]3 years ago
8 0

Answer:

Bipedal posture allowed arms to be free to develop and use tools.

Explanation:

DENIUS [597]3 years ago
5 0

Answer:

B

Explanation:

B

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How do specialized organelles that capture energy from the sun help plants survive?
Softa [21]
Chloroplastst capture energy from the sun to help survive by collecting the energy to be used to convert into glucose, which is food for the plant. The process in chich this sunlight is turned into glucose is called “photosynthesis”.

I hope this helps! <3
4 0
3 years ago
In Guinea pigs, short hair is dominant and long hair is recessive. A
larisa86 [58]

Answer:

a. S represents allele for short hair while s represents allele for long hair.

b. Ss (male) × ss (female)

c. 50% Ss, 50% ss

d. 3 long hair (ss), 3 short hair (Ss)

Explanation:

This question involves a single gene coding for hair length in guinea pigs. The allele for short hair (S) is dominant over the allele for long hair (s).

a. Letter "S" will represent the allele for short hair while letter "s" will represent the allele for long hair.

b. According to this question, a heterozygous male is crossed with a long-haired female. The genotype of the male guinea pig is "Ss" while that of the female is "ss". (see attachment for the punnet square)

c. The possible genotypes of the offsprings in this cross are: Ss and ss, each carrying 50% each as they are produced in a ½ Ss: ½ ss.

d. Since 50% of the offsprings will be both short haired and long haired, If they have six babies, 3 of them will be short-haired while 3 of them will also be long-haired.

7 0
2 years ago
Which animal undergoes external fertilization?
zhannawk [14.2K]

Answer:

Among vertebrates, external fertilization is most common in amphibians and fish. Invertebrates utilizing external fertilization are mostly benthic, sessile, or both, including animals such as coral, sea anemones, and tube-dwelling polychaetes. Benthic marine plants also use external fertilization to reproduce.

= Fish

Explanation:

7 0
2 years ago
Which is not considered to be an enhancer to transcription in the metallothionein 2a gene?
alisha [4.7K]

PZ120 is not considered to be an enhancer to transcription in the metallothionein 2a gene.

<h3>About metallothionein 2A.</h3>

Metallothionein-2 is a metallothionein protein that in humans is encoded by the MT2A gene.

In human it is expressed in;

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  • right lobe of liver
  • olfactory bulb
  • left uterine tube
  • external globus pallidus
  • right lobe of thyroid gland
  • upper lobe of left lung
  • Region I of hippocampus proper
  • right lung
  • left lobe of thyroid gland

It's molecular function are;

  • Protein ion binding
  • Zinc ion binding
  • Metal ion binding

It helps in various biological processes;

  • response to metal ion
  • cellular response to interleukin-3
  • cellular response to erythropoietin
  • negative regulation of growth
  • cellular response to zinc ion
  • interferon-gamma-mediated signaling pathway
  • cellular copper ion homeostasis
  • cellular zinc ion homeostasis
  • detoxification of copper ion
  • cellular response to cadmium ion
  • cellular response to copper ion
  • nitric oxide mediated signal transduction
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To learn more about Metallothionein 2a,

brainly.com/question/13962194

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7 0
1 year ago
Which of the following is not a possible consequence of the introduction of invasive species? a. changes to the existing gene po
cluponka [151]

Answer:

Tyler message me the login info on here

Explanation:

6 0
2 years ago
Read 2 more answers
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