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abruzzese [7]
3 years ago
8

Chrysanthemum pests and diseases include leaf miners, _____, powdery mildew and leaf spot

Biology
1 answer:
Diano4ka-milaya [45]3 years ago
5 0

Answer:

aphids

Explanation:

it just is trust me

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What pigment molecule absorbs blue and red light to provide energy for photosynthesis
yanalaym [24]

Answer:

chlorophyll a

Explanation:

This is the pigment s that absorbs light in blue and red light  wavelengths when illuminated by sunlight with all wavelength.However it reflects green light. This explains the reason why green plants appears green to our eyes,

the pigments are located in leave and stem of green plant.

Blue light has a wave length of 430nm, while Red wave length is 662nm

6 0
4 years ago
Compare the stucture of a food web with a food chain
zvonat [6]

 food chain:The simplest representation of energy in a community. At the base is energy stored in plants, which are eaten by small organisms, which in turn are eaten by progressively larger organisms; the food chain is an oversimplification in that most animals do not eat only one type of organism.  

------------------  

food web:the interconnected feeding relationships in an ecosystem. These relationships can be complex; some organisms may feed on more than one trophic level, or changes may occur depending on a species' life history stages or the availability of food.

7 0
3 years ago
Two brothers have X‑linked red–green colorblind vision, and their parents have normal color vision. The first brother's karyotyp
zhenek [66]

Answer:

The answer is mother in meiosis II

Explanation:

nondisjunction can be defined as the failure of the segregation of the child chromosomes in meiosis I and meiosis II resulting in gametogenes. This results in abnormal gametes with some chromosomal imbalance being formed and subsequent fertilization of these gametes results in a generation of abnormal individuals.

According to exercise, red-green color blindness follows an X-linked recessive pattern and the phenotype is only expressed. the father cannot bring the possibility of color blindness to his children, and the nondisjunction, defined earlier, cannot occur in either meiosis I or meiosis II. As a conclusion we can say that it may have a place in meiosis I or meiosis II corresponding to the mother and although the mother's condition may be normal, the first child would be compromised with color blindness, therefore, the mother is the carrier.

3 0
4 years ago
How the conditions on early earth made the origin of life possible?
kiruha [24]
Water, air, food. and heat.
7 0
4 years ago
How do cells respond to contact<br> with other cells?
lbvjy [14]
i think they fight each other since they’re different
8 0
3 years ago
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