second challenge to life on land was the distribution of water and other materials to each cell. In aquatic forms, transport occurs directly from the surrounding environment. On land, however, plants must get water and other materials from the soil.<span>Body support
</span><span>As plants evolved from aquatic to terrestrial environments, several obstacles stood in the way. One obstacle was structural support. In water, organisms are buoyant and the effects of gravity are minimal. Even among larger forms, like kelps, structures with gas-filled vesicles allow them to float. On land, however, if a plant is to grow tall, it needs to withstand the forces of gravity.
</span><span>A third challenge during the transition to land involved bringing sex cells together. In water, sperm are able to swim directly to eggs. On land, this can only happen in moist environments.
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hope this helps xxx
please get back to me if you need any other help or an explanation.
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2.Facultative
anaerobes can survive either with oxygen or without it. This organism
can live and grow in the absence of oxygen. The correct answer is:
Facultative
anaerobes
<span>3.Photoautotroph
are organisms that carry out photosynthesis. The place where you are
likely to find a photoautotroph is near the surface of lakes,
streams, and oceans. The correct answer is:</span>
<span>Near
the surfaces of lakes and streams</span>
<span>4.Prokaryotes
are the smallest and most abundant organisms on the Earth. They range
in size from 1 to 5 micrometers. This organisms are classified as
Bacteria or Archaea. Most of them exchange genetic information by a
process called conjugation. The correct answer is:</span>
<span>Conjugation</span>
<span>I
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Mendel discovered the fundamental laws of inheritance through his work on pea plants. He used around seven plant traits of which, length of the stem was also considered and hybridization between the tall plants (TT) and the dwarf plants (tt) was conducted.
Alleles refers to the alternative forms of a gene. They are the recessive and the dominant alleles. According to Medel's law of dominance, the recessive alleles are masked by the dominant alleles. In pea plants, the allele for tallness is dominant. It expresses itself in both the homozygous dominant condition and the heterozygous dominant condition. Thus, the possible genotypes of a tall pea plant are TT and Tt.
Answer: 100% (4/4)
Explanation: Since the woman’s trait is dominant it will mask the normal stature in all their offspring. For example, A = achondroplasia trait, a = normal stature. It is very possible that the woman carries the trait and her offspring who may not possess it can pass it on to their offspring
Answer:
Aspirin, ibuprofen, or acetaminophen.
Explanation:
