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MakcuM [25]
3 years ago
10

Blood type is an example of codominance, where blood type a is dominant with blood type b, and blood type o is considered recess

ive. a heterozygous blood type a woman marries a heterozygous blood type b man. what is the probability that they will have blood type a children? 0%
Biology
1 answer:
Sever21 [200]3 years ago
5 0
The probability of a child with the phenotype of A will be 25%
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Which best explains a difference in the growth of seedless vascular plants and nonvascular plants?
Marianna [84]

Answer: Seedless vascular plants can grow taller because they have tissues that support the plant and carry water and nutrients.

Explanation:

Seedless plants are those which lack seed production they have vascular system comprising of xylem and phloem tissues. These tissues help in conduction of water and nutrients from the soil this helps in growth of plants to larger sizes are compared to nonvascular plants that obtain water and minerals via diffusion with the moist soil so their growth is restricted as they do not have well developed vascular system. The example of seedless vascular plants are the ferns. The example of nonvascular plants are mosses.

6 0
3 years ago
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Why cycus are called conifer? give its 3major characteristics features​
Licemer1 [7]

Answer:

Cycads /ˈsaɪkædz/ are seed plants that typically have a stout and woody (ligneous) trunk with a crown of large, hard, stiff, evergreen and (usually) pinnate leaves. The species are dioecious, therefore the individual plants of a species are either male or female. Cycads vary in size from having trunks only a few centimeters to several meters tall. They typically grow very slowly[3] and live very long, with some specimens known to be as much as 1,000 years old.[citation needed] Because of their superficial resemblance, they are sometimes mistaken for palms or ferns, but they are not closely related to either group.

Cycads are gymnosperms (naked seeded), meaning their unfertilized seeds are open to the air to be directly fertilized by pollination, as contrasted with angiosperms, which have enclosed seeds with more complex fertilization arrangements. Cycads have very specialized pollinators, usually a specific species of beetle. Both male and female cycads bear cones (strobili), somewhat similar to conifer cones.

Cycads have been reported to fix nitrogen in association with various cyanobacteria living in the roots (the "coralloid" roots).[4] These photosynthetic bacteria produce a neurotoxin called BMAA that is found in the seeds of cycads. This neurotoxin may enter a human food chain as the cycad seeds may be eaten directly as a source of flour by humans or by wild or feral animals such as bats, and humans may eat these animals. It is hypothesized that this is a source of some neurological diseases in humans.[5][6]

Cycads all over the world are in decline, with four species on the brink of extinction and seven species having fewer than 100 plants left in the wild.[7] The plant has a very long fossil history, with evidence that they existed in greater abundance and in greater diversity before the Jurassic and late Triassic mass extinction events.

Explanation:

~Dr.Smiley~

(Jane)

8 0
2 years ago
True or false? the spectrum of health care delivery refers to the various types of care.
Xelga [282]
Your answer is B. True
7 0
3 years ago
Describe how sonar technology involves electromagnetic or sound waves.
vlabodo [156]

Answer:

Lol, sonar technology sends sound waves into the ocean and when the waves hit something, the device measures how long it took to hit something and come back basically

8 0
3 years ago
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Faciliated diffusion is
BartSMP [9]

Answer:

Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins.

Explanation:

From Wikipedia

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