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sp2606 [1]
3 years ago
8

Which structure is common to both gymnosperms and angiosperms?

Biology
1 answer:
alukav5142 [94]3 years ago
5 0

Answer:

The correct answer is  Ovule

Explanation:

The evolution of the seed is a very important step of evolution in land plants. The evolution of the seed enable plants to grow away from the very moist environments. That is why gymnosperms soon became the dominant plants. Gymnosperms and angiosperms both have ovule whcih is after fertilization becomes seed. The ovule in the gymnosperm is naked and not enclosed in the fruit, whereas in the angiosperms seeds are enclosed in the fruits.

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Mary bought three flowering plants for her garden. The first one has red tubular flowers filled with nectar; the second one has
uranmaximum [27]
I would say that the first flower attracts birds etc. t go and drink it's nectar (also I know that humming birds are attracted to red), and thus spread it's pollen. The second flower most likely attracts bees seeing how t is also sweetly scented, but has no nectar. This must mean that it only has pollen, which bees are great at spreading! I have no clue about the last one....Maybe bugs or bats?? Those are the only other pollinators I know of. It could possibly be that there is no pollinator for the third flower and it just tries to keep animals and insects from eating it with it's shape and odor and just relays on the wind for pollination.<span />
6 0
3 years ago
Succession occurs when environmental factors affecting an ecosystem change. True or False
zhannawk [14.2K]

Answer: True

Succession is the phenomena in which changes in the biotic and abiotic factors of the environment leads to change in the ecosystem. A succession is a process in which a biological community is replaced by another biological community until a mature ecosystem is formed this process is influence by environmental factors. Primary succession is the primitive environment where no biotic community previously existed it is followed by secondary and subsequent succession were life forms develop and form an ecosystem. Some of the environmental factors are:

Topographical : These are the change in the region or habitat were succession occurs. Landslides, volcanic eruption, glacier melting etc. are the examples , as these topographical changes can bring reformation of the landscape. The disturbance caused by these topographical changes will allow the disturbance tolerant species to repopulate the habitat.  This can be a transition from primary to secondary succession.

Soil : It is an abiotic factor.The growth of the plants requires suitable soil conditions. The type of soil will affect which species will inhabit the area. The soil moisture and pH greatly affect the number of plant species in an area.

Climate : It can influence the direction of succession. Climatic factors includes rain, wind etc. For example a region lacking proper rainfall the species will be tolerant to dry and drought conditions. The region with heavy rainfall, the species will be more tolerant to moisture. Wind being a climatic factor can cause wind erosion affect the soil quality. Wind can lead to heavy forest fires can therefore, wiped out community.

8 0
3 years ago
Read 2 more answers
A scientist is trying to determine the evolutionary relationships among species with very similar physical characteristics. one
NARA [144]

Answer:

Amino acid sequence is directly related to the differences in the DNA of the species.

Explanation:

Above situation is related to the evolutionary research in which scientists are in search of common characteristics between species and from those species they will examine the amino acid sequence of proteins because amino acids sequence is directly related to the sequence of DNA and DNA is the main thing among all other variables by which differences in species can be identified effectively.

4 0
3 years ago
Genotypes usually involve some combination of dominant and recessive alleles. What is the most common inheritance pattern?​
mylen [45]

Answer:

The correct answer is option D) six dominant and two recessive.

Explanation:

The most common genetic inheritance pattern involves cross between heterozygous recessive parents which means it has one allele of each character in every parent (suppose Tt).

Cross between these parents provide these offspring; TT, Tt, Tt, and tt which exhibit 3:1 ration which can also be mention as 6:2 which means 6 out of the 8 has dominant (homozygous or heterozygous) and 2 out of 8 offsprings are recessive alleles.

Thus, the correct answer is option D) six dominant and two recessive.

4 0
3 years ago
BRAINLIEST if right!
ikadub [295]
High salinity, high temp, or D because of the salt which would cause humidity, which in turn would cause water
7 0
3 years ago
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